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Proceedings Paper

A method for fast 3D fringe projection measurement without phase unwrapping
Author(s): Xiaoli Liu; Yang Yang; Qijian Tang; Zewei Cai; Xiang Peng; Menglong Liu; Qingquan Li
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Paper Abstract

At present, fringe projection profilometry has also been limited with a trade-off between speed and accuracy. For achieving high accuracy measurement, phase-shifting and phase-unwarpping operations will always be used for phase correspondence, however, the phase-unwrapping processing does not contribute to improve the phase accuracy, but just to distinguish phase steps. For futher reducing the projection pattern for phase-unwarpping, we propose a novel method for phase corresponding in bi-cameras system without phase unwrapping. Phase-to-3D mapping structures are utilized to obtain the candidate correspondences and eliminate the ambiguties with wrapped phase, which is implemented efficiently without time-comsuming phase correspondence searching. The experiments on both static and dynamic scenes are perfomed to verify its capability of 120 fps 3D reconstructing speed by overlapped using 3-step phase-shifting pattern.

Paper Details

Date Published: 24 July 2018
PDF: 8 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 1082713 (24 July 2018); doi: 10.1117/12.2501470
Show Author Affiliations
Xiaoli Liu, Shenzhen Univ. (China)
Yang Yang, Shenzhen Univ. (China)
Qijian Tang, Shenzhen Univ. (China)
Zewei Cai, Shenzhen Univ. (China)
Xiang Peng, Shenzhen Univ. (China)
Menglong Liu, Shenzhen ESUN Co., Ltd. (China)
Qingquan Li, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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